Gwan : Debug option for C

Question

I have a signal 11 after a while with a c script in a connection handlers.

I have no memory problem and unit test work well !

I'd like to know if there is a debug mode with gwan for c scripts ? and how to activate it ?

Thanks by advance Regards

Answer 1

Because they are at the core of Web development, servlets provide automatic crash reports (see the crash.c example).

But connection handlers lacked this feature introduced in G-WAN v3.6+. In this version and more recent releases, it can be enabled by a #pragma debug directive in the handler source code.

There's also a new and very detailled per-thread dump in v3.9+ to get a wider 'picture' of servlet/handler/libraries/server errors. It is stored in the ./trace file.

Your crash dump reports a libc call error. The main source of such errors has been found in memory allocations. G-WAN v3.4+ tried to catch them more effectively by using its own (wait-free) allocator.

BTW, siege is not performing very well whether this is on single-Cores or on multicore systems (for performance tests, weighttp will let you test the server instead of the client).